Wrapping machine



June 3 1924.

E, L. SMITH WRAPPING MACHINE Filed Nov. 15, 1921 4 Sheets-Sheet 1 June 31924. 1,496,074 E. L. SMITH WRAPPING MACHINE Filed Nov. 15. 192-1 4Sheets-Sheet 2 ATTORNEYS.

, INVENTOR June 3 1924. 1,496,074}

, E. L. SMITH WRAPPING- momma I Filed Nov. 15. 1921 4 Sheets-Sheet 3INVE QWAW ATTORNEY5. V

Patented June 3, 1924 nrra S ATE PATEN roFFicEQ IEACI-IINERY COMEANY, OF

MASSACHUSETTS.

Application filed November To all whom it may concern.

Be it known that 1 Emrnn LOVELL SMITH, a citizen of the United States,residing at Springfield, in the county of Hampden-and 5 State ofMassachusetts, have invented new and useful Improvements in WrappingMachines, of which the following is, a specification. I 1

The present invention relates to improvements in wrapping machines andmore particularly to machines wherein an article is completely enclosedwithin a sealed wrapper. Although capable of more general application,the invention is especially useful for wrapping relatively smallrectangular articles such as cakes of dry or hard yeast. In order to.properly preserve cakes of; dry yeast, it is essential that theindividual cakes shall be carefully wrapped in such a manner as toinsure their adequate protection from air and moisture difficultheretofore, however, to wrapthe' yeast in a uniformly efficient andreliable manner by reason of the fact that the cakes vary more or lessin size because of different conditions to which they are subjectedwhiledrying.

One object of the present invention is to" provide an improved machinewhich will operate to tightly and carefully wrap solid rectangulararticles such as individual cakes of dry yeast, and to seal-the wrappereffectively and reliably irrespective of slight variations in the sizeof the'articles.

Another object of the invention is to provide, in a machine for wrappingarticles which may vary from one another slightly in size, meansoperative irrespective of such variation for centrally locating thearticles relatively to two opposite edges of the Wrapper which is to beapplied thereto.

Another object of the present invention is to provide, in a wrappingmachine of the character described, means for operating; upon thearticles prior to the wrapping thereof to insure'the'removal therefromof undesirable projecting edges or fins which may be present uponcertain sides or faces of the articles.

A. further object is to provide in a wrapping machine generally improvedmechanical structure.

lVith these and other objects in View, as

It has been srnrnorrnnn, nssncnusnrrs, A CORPORATION or WRAPPINGMACHINE.

*15, 1921. Serial No. 515,263.

will hereinafter appear, the inventionconsists in the features ofconstruction and in the combinations and arrangements of parts set forthin the following description and particularly defined in the appendedclaims. The invention will be. best understood from a description ofthepre'ferred embodiment thereof illustrated inthe accompanyin drawings,in which V Fig. 1 is a side elevational View of amachine .embodying the.invention;

.r g- 21s a sectional plan viewthereof,

taken substantially on. the line 2-2. of,

Fig. 1; V 1

Figs. 3, 4 and 5are detailsectional views 7 taken on the lines 33, 4-4,and 5-5, re-

spectively, of Fig; 1; g i

Fig. 6 is a detail plan View per ends after theyha've been scaled by theapplication of heat thereto;

Fig. -7 is a sectional detail view showing portions of the positioningor centerin de vice for locating the articles relativefy to theirwrappers and showingalso the trimming knives associated with saidpositioning device Y Fig. 8 is a perspective View of one of the arms ofthe article positioning device showing particularly themounting of thetrim ming knife;

Fig. 9 is a perspective view of a cake of dry yeast illustratingparticularly the pro,-

jecting edges or fins that are removed by the trimming knives;

Figs. 10 to 16,'inclusive, are perspective views illustrativeofdifferentstages in the operation of wrapping an article; 7

Fig. 17 is a detail elevational view of a portion of the-actuatingmechanism for the of a portion of' the device for cooling the foldedover wrap'-;

arms whichfunction in the feeding of the articles into the rotatableturrets and which remove the articles therefrom; Fig. 18-is aperspective view of a portion of the foldingchute; and

Fig. 19 is a detail view, in end elevation,

of a portion of the folding chute illustrating its action upon apartially wrapped article.v

.The particular machine shown in the drawings is constructed andarranged to I wrap cakes of dry or hard yeast which are of the usualrectangular shape having two square faces and four relatively narrow vfaces. The yeast cakes lie flat, i. e., with top and bottom faces withreference to the position of the article at the particular time .inquestion. Also the four narrow faceswill hereinafter be described withreferenceto the direction of travel of thearticle at the particular timewhen said faces are mentioned. Accordingly, the narrow face whic'hisforemost in the direction of feed of the article will be designated thefront face, the face opposite thereto will be termed the rear face, andthe two remaining narrow faces w il'l'be referred to as the end faces ofthe article. Furthermore, portions ofthe wrapper extending beyond thefront or rear faces of the articles will'be termed the end extensions,while portions of the wrapper projecting beyond the end faces of thearticle will be referred to as the side or tubular extensions of thewrapper.

The invention contemplates the use in connection with the present:machine of wrapping material which has been previously treated withwax, or like substance, in order that; the wrappers may be sealed madeairwtight by heating the overlapping portions thereof to soften or meltthe wax in the wrapper material and then allowing the same to cool andsolidify.

ithe machine will first be more or less briefly described in connectionwith the various operations which it is adapted to perform. Referringjtothe drawings, the articles or yeast cakes A are supplied, square facedown and one behind another, upon an endless belt conveyer 20 whichextends transversely of the machine. The conveyer- 20.. feeds thearticles into the path of a pusher 22 which reciprocates horizontally atright angles to the "length of the conveyer. The pusher 22 removes thearticles singly from the conveyer 20 and advances them toward avertically disposed wrapper W, and between the arms of apositioningdevice 26 which locates them centrally with respect to thevertical edges of the wrapper. The continued advance of the pusher- 22then forces the wrapper and article together into one of the pockets ofa turret or tumble box '28, the latter being intermittently rotatableand being positioned, during its intervalsqof rest, with one of itspockets located at an article receiving station 30 while another pocketis positioned at a delivery station 32. The introduction of the articleand wrapper into the pocket of the tunr-ble box causes the wrapper to belaid in U-form about the front, top and bottom faces of the article.Just before the article enters the pocket in the tumble box 28, thewrapper W engages a yielding plate 34 carried by an arm 36 whichthereafter advances in unison with the pusher. the pocket of the tumblebox ahead of the article and the yielding plate 34 prevents displacementof the wrapper by holding it firmly against theforward edge of thearticle. The wrapper is so positioned, when engage'd by the advancingarticle, that when the wrapper is carried into the tumble box the topface of the article will be only partially covered by the wrapper, asshown at a in Fig. 10, whereas, the front and bottom The arm 36 entersfaces of'the article will be entirely covered thereby and the wrapperwill extend rearsubstantially the lower half of the periphery of thetumble box. After the tumble box has been rotated through one half of arevolution, the article is located in inverted posi tion at the deliverystation 32 and appears as shown in Fig. 11, the wrapper extension 6being yieldingly held between the periphery "of the tumble box and theend of the shield 38 which is adjacent the delivery station. The articleis ejected from the tumble box by means of a pusher 40 which pushes thearticle into a folding chute indicated in whole as 42, during whichmovement the wrapper extension t islaid against what is then the bottomface of'the article, said extension overlapping the portion a of thewrapper as shown in Fig. 12. 2 During the last described movement of thearticle, the rear side extensions 0 "of the wrapper are folded downagainst the opposite end faces of the article by the pusher {t0 itself,while the forward side extensions (5 are laid against said ends faces ofthe article by the ing chute until the tumble box has anade anotherpartial rotation, bringing another partially wrapped article intoposition at the delivery. station 32. Upon the ejection of the lastmentioned article from the tumble box, the article in the folding chuteis ejected from the chute and is introduced into one ofthe pockets of anintermittently rotatable turret or carrier 44 while said pocket islocated at a receiving station 46. As the article is advanced into thepocket of the turret 44 it passes between a pair of heater plates 48which are constructed and arranged to complete the folding of the lowerend extensions 6 during the passage of the article therebetween. Thearticle now appears as shown in Fig. 16. The upper end extensions f arenow the only portions of the wrapper remaining unfolded and theseextensions project into narrow channels in the heater plates. As theturret 44 starts'to rotate, the extensions f are pulled out of thechannels in the heater plates and the upper edges of the'seplatesoperate as the turret 44 rotates to fold said extensions downagainst'the article, overlapping the extensions e and to heat-seal saidoverlapping portions. The articles are now completely wrapped and theyare moved by the intermittent rotation of the turret 44 between theoppositely disposed members of a cooling device 50, said deviceoperating to holdthe folded wrapper extensions in place and under aslight yielding pressure as they are moved away from the receivingstation, and also to extract heat from the wrapper so that the wax willset and the wrappers will be permanently and effectively sealed beforeleaving the machine. The rotation of the turret 44 finally brings thewrapped and sealed articles to a delivery station-52 when they areejected from the turret 44 by means of a pusher 54.

The greater part of the driving meclia nism of the machine is locatedbetween two spaced vertical side frames 60 rising from a bed 62supported by a pedestal 64, and the various instruinentalities whichoperate upon the articles are mounted adjacent the outer face of theside frame 60, at the front of the machine. A main drive shaft, (notshown) may be journaled in the pedestal 64 and this shaft may derive itspower from any suitablesource andis connected, through a chain 66 andsuitable sprockets, with a horizontal cam shaft 68 1). The camshaft 68drives, through achain 70 and suitable sprockets, a horizontal shaft 72,and the latter is connected by any suitable means, such as intermeshinggears (not shown) with ashaft 74 which is the driving shaft for thewrapper feeding mechanism. The shafts 68, 7 2 and 7 4, together withdriving shafts 76 and 78 for the turrets 28 and 44, and a rock shaft 79' are journaled in bearings in the side frames 60. The turret shafts 76and 78 extend beyond the front side frame to receive and support theirrespective turrets which are rigidly secured t-hereto, and the turretshaft 76 and the shaft I 72 project beyond the rear side frame. On

the rearwardlyprojecting end of the shaft 1 72 is secured a crank 80which operates a Geneva cam or star Wheel 82 secured to a shorthorizontal shaft 84 that is journaled' inthe rear side frame. The shaft84 drives, through lntermeshing gears 86, the turret shaft 76, andthrough a chain .88andsuitable sprockets said shaft also drives the Thedesign :of the portion disposed ina planeaxially offset from itsinnerportion, so as to afford an annular recess 90 (Fig. 2). In the outerperipheral portion of the turret 28 are four equally spaced radial slots92 which constitute the article receiving pockets and which extendfurther than necessary for this purpose to' communicate with the recess90. Rigidly secured to one side wall of each radial slot 92 is a plate94 while a corresponding plate 96 is yieldingly mounted adjacent theopposite side wall of each slot. The plates 94 and 96, thus form theopposite side walls of the pockets for receiving the articles andwrappers. As shown, the yielding plates 96 are acted upon by suitablesprings 98 carried by the turret and are sup ported for yieldingmovement in planes parallel to the fixed plates 94 by means of pins 99that are suitably supported and guided in the turret. Inasmuch as theturret 28 is intermittently rotated through quarter revo-' lutions, asdescribed, the article receiving" rently with the arrival of a pocket atthe receiving station another pocket at the opposite side of the turretis positioned at the delivery'station 32 for the discharge of itsarticle therefrom. Both plates 94 and 96 are grooved to provide narrowparallel ribs 95 (Fig. 2) extending in the direction of movement of thearticles as they are introduced into the pockets or ejected therefrom.

This construction reduces any tendency which the partially wrappedarticles may have to stick to the sides of the pockets.

Cooperating with the turret 28 are the arms 36 and 40 which reciprocatein the horizontal. plane of the axis of the turret. During each periodof rest of the turret, the

pockets 92 are successively brought to rest at the receiving station 80for the reception 'of an a'rtlcle and its wrapper, and concurarm 36moves inwardly through the pocket 92, which is positioned atthe'receiving station 30, and into the annular recess where it remainswhile a quarter rotation isimparted to the turret to advance the articletoward the delivery station 32 and to bring an empty article receivingpocket to the receiving station 30. Upon the arrival at the receivingstation of the empty pocket 92' the arm 36 moves outwardly through thispocket into position to be engaged by a new articlein orderthat it mayprecede the same as it is. introduced into said pocket. The arm 4L0operates at eachinterval of rest of the turret to remove a partiallywrapped article from the pocket 92 which is positioned at the deliverystation 32 and tointroduce said article into the folding chute 4L2. Tothis end, the arm 40 is located within the annular recess 90 during themovement of the turret and moves. outwardly through the pocket at thedelivery station asthe turret comes to rest after each step movementthereof. Before the turret again startsto rotate the arm 40 returns toits normal position within the recess 90 so that it will be ready totransfer the next article from the turret 28 to the folding chute 42.

The turret or carrier- 'is, in a general.

'way, similar in construction to the turret 28-,

just described, except. that the turret 4:1- is provided with tenradial, equally spaced article receiving pockets instead I of four suchpockets as in the turret 28. The pockets in the turret 44 are indicatedat and acentral annular recess with which.

meansof the arm 5 1. Theejector arm is normally positioned in theannularrecess 102 and is connected to operate inunison with the arm 10 alreadydescribed. cordingly, at each cycle of operations the arm 5stfmovesoutwardly through the pocket at the discharge station 52 to eject anarticle from the pocket and the arm is then retracted through the samepocketinto the recess 102 before the turret again rotates.

The arm 36extends at right angles to an upright bar 104 (Figs. 2'and 17)to which it is rig-idly. secured and which is, in turn, fixed to ahorizontal rod 106 and slidably receives a second parallel rod 108 whichis located above the rod 106. The rods 106 At each cycle of. operationsof the At, each period of rest of the and 108 are slid'ably mounted inbrackets 11.0: on the front side: trame 60. The arm.

4-0 is fixed to an. upright bar 112 which is rigidly secured to. theupper rod 108 and slidab-ly receives the lower. rod 106; The arm 54 is.secured to the upper rod 108. r The. three arms 86, 10 and 54 lie in thecommon axial plane of the turrets 28 and 4a. and extend forwardly intothe path of the articles that are being wrapped. Thelower rod 106,

and withit the arm 80, are reciprocated by. J means of acam lever 114which is loosely mounted on the rock shaft 79, said lever beingconnected by a link 116 with the bar 10 1, andcarrying a cam roll 118which'rides in a groove in a cam disk 120 on the cam shaft 68. The upperrod 108, and with. it the arms 40 and 54s, are reciprocated by means01": a cam lever 122' which is also loosely mounted: on the rock shatt79, saidi lever being connected by a, link 12 1- with:

the bar 112 and carrying a cam roll, 126; which rides in a cam 128 onthe cam shatt 68. The grooves in thecan'is 120 and-11.28. are designedto move the:arms:36, 4:0 and in the time relation to the cycleot operations already, set forth.

The conveyer belt 20, by means offwhich the articles are fed into the:path of" the zontal. plate 136 which. is supporteditrom.the.

front side frame 60 and prevents: upward displacement of the articlewhile the-,- latter is being transferred by the pusher 22 from theconveyer belt to the turret; 28. The foremost article on. the belt 20 isarrested by means of; an abutment 138; (Fig.- 2) when it has reached aposition in frontof the pusher 22. The abutment- 138 may conveniently besecured to, the underside of the plate 136. The belt pulley 130% isfixed upon a, shaft 139 rotatablyv supported upon the front side frame60. The shaft139-is driven'from the cam shaft 68' through int-ermeshingspiral gears-1A0.

The wrapper feedingmechanismmay beof any suitable t-ype, ,that shown forpur* poses of illustration being substantially the: same-in constructionand mode of operation as that. disclosed in United States; LettersPatent No. 1,330,354, granted Feb. 10, 1920 is drawn, in strip form,from a roll 142 and between unwinding rolls 143 by means of feed rolls144 one of which is fixed to the driving shaft 7 4. The wrapper strip isfed by the rolls 144 between the cooperating members of a shearingdevice 146 which is actuated from the feed roll shaft 74 in such timedrelation as to sever an individual wrapper W from the strip when a pieceof the required length has been fed beyond the shear members.

After passing beyond the shearing device 146 the leading end of thestrip of wrapper material is fed through a slot 148 in the horizontalplate 136 and into a wrapper receiving pocket 150 (Fig. 1) in which theindividual wrappers, are supported in a vertical position after beingsevered from the wrapper strip. To guide the leading end of the wrapperstrip into the slot 148, a pair of flaring side guides 152 are securedto the upper face of the plate 136 adjacent the oppositesides of thewrapper receiving slot.

The wrapper receiving pocket 150 is formed between the verticallydisposed portion of a bracket 154 and a vertical plate 156, said bracketand plate constituting the opposite sides of said pocket. The bracket154 is secured to the front side frame 60. The plate 156 is supportedfrom the bracket 154 by means of connecting webs 158, said webs beingarranged to constitute the front and rear ends of the pocket 150. Risingfrom the webs 158 at opposite ends of the pocket 150 are edge guides 160(shown in Fig. 2 and omitted in Fig. 1) which are adapted to engage thevertical edges of the wrapper to guide the wrapper into the pocket. Thebottom of the pocket 150 is formed of a wire 162 which depends from thebracket 154 and is bent to support the lower edge of the wrapper andposition the wrapper vertically for the first step in the wrappingoperation, i. e., the feeding of the forward edge of the article againstthe wrapper. The vertical plate 156 is provided with a bevelled upperface 164 across which the wrapper is drawn as the article is fed intothe pocket of the turret 28.

The articles A are fed against the wrapper W and into the turret ortumble box 28 by the pusher 22, the latter being reciprocable in aguideway 166 that is supported by the front side frame 60. The pusher22is connected by a link 170 to an arm 172 that is fixed to the rockshaft 7 9. The rock shaft 79 is actuated from the cam shaft 68. To thisend a-ca-m groove (not shown) in the cam disk 120 receives a roll 174carried at one end of a link 176, the opposite end of which is pivotallyconnected to an arm 178 on the rock shaft 79. The

link 17 6 is provided with a longitudinal slot 7 180 through which theshaft 68ex'tendsfor the purpose of supporting the link, the slot beinglong enough to permit the necessary range of movement of the link toproduce the desired travel of the pusher 22.,

As the articles are removed from the conveyer belt by the pusher 22,they are supported upon a horizontal feed table 182 (Fig. 2) which isformed integrally with the bracket 154 and extends from the conveyerbelt to the wrapper pocket 150. While being advanced across the feedtable 182, the articles are acted upon by the positioning device 26which locates them centrally between the vertical edges of the wrapperW, in order that said edges of the wrapper shall overlap to the sameextent at opposite faces of the article when folded thereabout. Thepositioning device 26 comprises. a pair of similar bell crank levers 184which are disposed in a horizontal plane above the plane of the articlesand are severally pivoted upon vertical studs 186 rising from the plate186. The longer arms of the levers 184, are disposed substantiallyparallel to each other and extend in the direction of feed of thearticles at opposite sides of their path of movement, and depending fromthe free extremities of these arms are gage members or shoes 188 forengaging the lateral edge faces of the articles. The shorter arms of thelevers 184 extend toward each other and are provided with segmental gearteeth 189 which intermesh so that the shoes 188 are constrained to movetoward and from each other in unison. The shoes 188 are yieldinglyurged. toward one another by means of a spring 190 secured at one end tothe front side frame 60 and at the other end to a third arm 192 on oneof the levers 184. As shown. the limit 'of approach of the shoes 188 isdetermined by a stop 194 on the plate 136 which engages which has beenpositioned in theipocketl50.

The corresponding arms of. the bell; crank levers 184 beingof equallength it is obvious that articles will be centered relatively to thevertical edges of the wrapper irrespective of slight variations in thesize of the articles. I J Y I The cakes of dry yeast upon-which thepresent machine is specifically. designed to operate frequently comefrom the-mold in which they are formed with irregular edges or finsprojecting from two of their opposite narrow faces, as shown at 197 inFig. 9: It

is desirable that these fins be removed before the articles are wrappedin order that the wrapped articles shall be of neat and uniformappearance. For this purpose,

trimming knives 198 are carried by the positioning shoes 188.

200 flush with the article engaging faces of; the shoes so thatthekniveswill not cut into the side faces of the cakes. The rearextremities of the shoes 188' however are narrower than the rest of theshoes and so arranged that portions of the cutting edges 200 of theknives are exp'osed above and below the shoes. The cakes to be wrappedaresupplied to the conveyer 20 in such a way that when advanced by thepusher 22 the fins 197 will extend in the direction of feed of thearticles, Thus when the cakes are advanced through the positioningdevice 26 the fins 197 will project outwardly be yond the planes of thecutting edges 200 and will be trimmed from the cakes thereby leaving theend faces of the cakes of smooth and uniformappearance. It will be seenthat the fins will be trimmed by the knives irrespective ofwhet-her saidfins project' from the upper or lower edgesof the end faces of thecakes. The [ins 197 shown in Fig. 9 have been partially trimmed from thecake,- the trimmed edges being shown at 202.

Afterthe article has been centered by the positioning device 26 andwhile the projecting fins if any were present, are being trimmedtherefrom by the trimming knives 198, the front-face of the articleengages the wrapper W and carries it against the yielding plate 34-. Thecam groove which receives the cam roll 174 is so arranged relatively tothe other cam groove in the disk 120 that the pusher 22 is advanced toengage an article A, and carry it across the feed table 182 and againstthe \vrapper W prior to the inward movement of the arm 36. The arm 36commences its inward movement only after the yielding plate 34 has beenmoved slightly toward said arm by the article and then the pusher 22 andthe arm 36 travel in unison until the article has been positioned in itspocket in the turret. Thereafter the pusher 22. draws back into theillustrated position and remains there until the turret again comes torest. The arm 36, however, continues its inward movement until itbecomes located in the annular recess 90 where it dwells during the succeeding partial rotation of the turret, and when the turret again comesto rest the arm 36 returns to its illustrated position through the emptypocket then positioned at the receiving station. Shortly after thearticle is advanced beyond the feedtable 182 its forward edge engagesthe yielding plate 3 1, and presses it towards its supporting arm 36before the latter arm starts. to move toward the turret. Thus thearticle is held between the yielding plate 3i and the pusher 22 andthere is no tendency for its forward portion to. tilt downwardly out ofits horizontal plane as it passes through the space intervening betweenthe feed table 182' and the turret 28. After the article has engaged thewrapper and while the latter is being carried forward with the articleinto-the pocket of the turret in a well known manner, the wrapper isdrawn through the slot in the horizontal plate 136 and across thebevelled face 164. on the vertical plate 156. The article'isfrictionally held in the pocket between the rigid plate 94 and thespring-pressed plate 96, each of these plates being somewhat bevelled attheir outer ends to facilitate the entrance of the article into thepocket. The lower end of the wrapper is not completely withdrawn fromthe pocket by the movement of the article as the latter isintroducedinto the pocket of the turret but said end of the wrapper O-X-tends beyond the article and overlies the bevelled face 164 at the topof the pocket 150.

After the article has been introduced into the pocket of the turret 28as described, the turret is rotated through a quarter revolutionbringing the article to the bottom of the turret and causing thetrailing wrapper extension to be withdrawn from the pocket 150 andfolded loosely over the previously uncovered rear face of the article bymeans of the arcuate folder shiele At theneXt step movement of theturret 2.8 the article is moved into position at the delivery station32. The article has now been inverted and the rear face last covered bythe wrap per is now the front face of the article and a trailing wrapperend 7) (Fig. 11) extends downwardly from this face between the peripheryof the turret and the adjacent end 204 of the folder shield 38.

To insure that the wrappershall be smoothly and evenly laid over what isnow the front face of the article. the folder shield is adapted to exerta tension upon the trailing wrapper extension 6 as the latter is engagedbythe end 204 of said shield. To this end the folder shield is securedat its lowest point to a rock shaft 206 that is mounted in the frontside frame 60 and has an arm 208 fixed thereon adjacent the inner faceof said side frame. The arm 208 is acted upon by a. spring 210 suitablysupported to press the said armagainst a stop 212. The stop 212is solocated that the end 204 of the folder shield will be yieldinglypositioned as shown, so as to cooperate with the peripheral portion ofthe turret to exert a drag upon the trailing wrapper end I) as theturret approaches its position of rest and thus cause said wrapper endto be tightly drawn across the front face of the article and held insuch condition while the turret remains at rest. As shown in Fig. 1, theend 204 of the folder shield is thickened or reinforced so that it willbe more rigid and thus better adapted to perform its wrapper tensioningfunction. The wrapping of the article has now progressed to the stageillustrated by Fig.11.

-After an article has arrived at the delivery station 32, and while theturret remains at rest, the article is removed from the pocket of theturret and introduced into the folding chute 42 by the action of thefeed arm 40. As the article entersthe folding chute, the trailingwrapper end remains under tension, bein still pressed by the foldershield against the adjacent peripheral portion of the turret, and as aresult the wrapper is tightly and smoothly folded over the lower edge ofthe advancingfront face of the article and. laid against the bottom facethereof, in overlapping relation with the. portion a of the wrapperwhich was first laid against this face of thearticle.

The top bottom, frontand rear faces of the article have now beencompletely covered by the wrapper and tubular extensions of'the latterproject beyond the two end faces thereof. As the feed arm 40 advances totransfer the articles from the turret 28 to the folding chute 42, theportions 0 of said tubular side extensions of the wrapper, which projectbeyond the rear face of the article are engaged by means of spacedfolding fingers 214 (Figs. 2 and 12) on said feed arm and folded therebyagainst the adjacent edge faces ofthe article, as shown in Fig. 13.-Thefeed arm 40 is also provided with depending prongs 216 which move in thegrooves that are formed between the ribs 95 of the plate 94, Theseprongs 216 back up the'portion of the wrapper which covers the loweredge of the rear face of the articleand prevents said portion fromwedging between the feed arm 40 and the plate 94. Thus said portion ofthe wrapper is held in close contact with the article and the portion ofthe wrapper which extends beneath the article is prevented from slippingrearwardly relatively to to the article as the latter advances over theribbed face of the plate 794. This insures that the wrapper will fittightly over the lower rear corner of the article and also that it willlie smoothly upon the bottom face thereof;

V The folding chute 42 (as shown in Figs.

1 and 3) comprises lower and upper horizontal plates. 220 and 222,respectively, and opposed side members 224. At the entrance end of thefolding chute, the lower plate 220 is pivotally mounted by means of ahorizontal stud 226 projecting from a web 228 formed upon an arm 230which extends at right angles to the plane of'the web and is secured toa bracket 232 'which is, in turn, secured to the front side frame 60.The opposite end of the plate 220 is supported from the arm 230 withprovision for vertical yielding movement. For this purpose a rod 233 ispivoted to the under side of the plate 220 and extends downwardlythrough the arm 230. A spring 234 which is coiled around the rod 233between said plate and arm urges the delivery end of the plate 220upwardly and holds it yieldingly in a position determined by a stop nut236 on the lower end of the rod 233 said nut engaging the arm 230 andadapted to be turned to vary the adjust ment of the plate, At its rearextremity, the plate-220 is provided with'notches 237 (Fig; 18) toreceive the ribs 216 on the under side of the feed arm 40 to permit saidfeed arm toadvance to a position slightly overlapping the lower plate220 of the folding chute.

The upper plate 222 of the folding chute iscarried by an arm 238 whichis pivoted at 240 to the bracket 232. The supporting arm 238' isnormally locked in a horizontal )osition as shown in Fi 3 for the urposeof maintaining the plate 222 in operative relation to the other membersof the folding chute, but the arm 238 is adapted to be swungupwardly'to-raise the plate 222 for the purpose of permitting the re-,moval from the folding chute of an article which may accidentally h avebecome jammed therein. To this end the arm 238 is provided with aspring-pressed detent 242 which is adapted to cooperate with notches 244in a segmental portion of the bracket 232. hen the detent 242 is engagedin the lowermost of the notches 244, as shown in Fig. 3', the plate 222is opcratively positioned. The detent has a suitable handle 246connected therewith which may be grasped for therpurpose of withdrawingthe detent from-the lower notch. By swinging the arm 238 upwardly untilsaid detent snaps into the upper notch 244, the plate 222 willbelatched-in its inoperative position and the folding chute will beopened. The plate- 222 is pivotally mounted for vertical tiltingadjustment upon the arm 238 by means of a pivot stud 243 extendingthrough upturned ears on said plate and through alug 241 depending froma portion of the: arm "238. of the folding chute the plate222is yieldsingly supported from the arm 238 by means of arod 242which is pivoted tothe upper side-of said plate and extends upwardly through a lug 245projecting from said At the entrance end arm. A spring 248 surrounds therod 242 between the plate 222 and arm and yieldingly presses said platetoward the lower plate 220. A nut 250, threaded upon the upper end ofthe rod 242, engages the lug 245 to limit the downward movement of.

the plate 222. The two plates 220 and 222 are normally spaced apart soas to yieldingly engage the top and bottom faces of the thinnestarticles which may be supplied to the machine. The plate 222 flaresupwardly at the end nearer the turrent 28, as shown at 252, tofacilitate the entrance of articles into the folding chute. The abovedescribed construction and arrangement of the plates 220 and 222 permitsthem to automatically adjust themselves relatively to each other toaccommodate articles of different thicknesses. It will be seen that thelower plate 220 is unyielclingly supported at the entrance end of thechute and is positioned so as to be in alinement with the rigid plates94 of the turret pockets when the pockets are at the delivery station32, whereas the upper plate 222 is yieldingly supported at the entranceend of the chute to accommodate articles of different widths and to.apply pressure to said articles. This construction facilitates theentrance of the articles into the chute. inasmuch as only one of theplates in the folding chute has tobe displaced to permit the articles toenter the chute.

The side members 224 of the folding chute consist of horizontal bars ofsubstantially the length of the plates 220 and 222 and said bars areinterposed between the lateral margins of said plates, the arrangementbeing such that narrow channels are provided between the side members224 and both plates 220 and 222 to receive the wrapper extensions 6 andj which project beyond the bottom and top faces, respectively, of theopposite sides of the article. The side members 224 of the folding chuteare mounted to yield outwardly to accommodate articles of varyingwidths. As best shown in 3, the side members 224 are carried at theupper extremities of a pair of arms 254 which are pivoted uponhorizontal rods 256 extending through the bracket arm 230. As shown, thearms 254 are offset outwardly from the 7 planes of the side members 224to avoid conflict with the lower plate 220. The arms 254 areextendedbelow the pivots 256 and these extensions are apertured to looselyreceive the opposite end portions of a horizontal rod 258 the centralportion of which extends through the 'web 228 and is rigidly securedthereto. To yieldingly press the side members 224 toward each other, the

. downward extensions ofthe arms 254 are forced outwardly by springs 260which are coiled around the rod 258 between said extensions and the web228. The limit of approach of the side members is determined by means ofnuts262 which are threaded upon the ends of the rod 258 and engage theextensions of the arms The nuts are adjustedto insure that the side memhere 224 will. yieldingly cngage'the lateral edge faces of the smallestarticles which may be supplied to the machine.

lVhen an article is introduced into the folding chute 42. the rearportionsof the tubular wrapper extensions have been folded against theside faces of the article, as shown in Fig. 13, while the front, top andbottom portions, (Z, c and of the tubular wrapper extensions have notyet been folded but pro ject beyond the end faces of the articles asillustrated in said figure, As the front face of the article enters thefolding chute, the bottom portions of the tubular wrapping extensions atopposite ends of the article are folded back against the end faces ofthe article, as shown in Fig. 14, by means of folding projections 264(Fig. 18) on the side members 224, leaving only the top. and bottomportions 0 and f of said tubular side extensions to be folded. As thearticle progresses through the foldingchute, the trailing end portion 6of the wrapper is with drawn from between the folder shield 38 and theturret and is laid against the opposite end portion a of the wrapper bythe lower plate 220. The bottom face of the article is now completelycovered by the wrapper, the ends of which smoothly overlap as shown inFig. 18.

As hereinbefore described, the articles are introduced into the foldingchute by the feed arm 40 which ejects them from the turret 28. Thefolding chute is somewhat longer than the articles and the latter areadvanced by the feed arm until their front faces are located slightlyforward of the center of the chute. The feed arm then returns intoposition to eject another article from the turret 28 and after thelatter has moved through another quarter revolution, the feed arm againoperates ejecting,

another article from the turret 28, pushing it against the article inthe folding chute and causing the latter to advance therein until itsforward end is introduced between the heater plates 48 while its rearend remains in the folding chute. The articlethus positioned partly inthe chute and partly between the heater plates fails to reach the turret44. Upon the next forward stroke of the feed arm 40, however saidarticle is advanced into that pocket 100 of the turret 44 which is thenat rest at the receiving station 46.

The overlapping wrapper ends at the bottom of the article are sealedwhile the article is in the folding chute. lower plate 220 of thefolding chute is heated so that the waxin the overlapping ends of thewrapper will be melted to cause said To this end, the i ends to adhereto each other. For the purpose of heating the lower plate 220, an elec-(Figs. 18 and 19) and these folding lugs raise said wrapper extensions 6toward the end faces of the article, but do not fold them closelyagainst said faces, the wrapper extensions being raised to the angularposi* tions indicated in Fig. 19. The side members 224 of the foldingchute are undercut,

'as shown at 270 in Fig. 18, to permit the above described preliminaryfolding of the wrapper extensions 6. i

The heater plates 48 are somewhat. longer than the articles and areprovided with smooth, vertical, inwardly directed faces for engaging thebottom portions 6 of the tubular wrapper extension, which portions havealready been partially folded as de scribed, and completing the foldingof these extensions by pressing them tightly against the opposite endsof the'article. In order that the heater plates 48 shall thus press thewrapper extensions against the ends of the articles and shall also becapable of accom; modating between them, articles varying from oneanother somewhat in size, the heater plates are mounted in amannersimilar to the manner of mounting of the side members 224 of the foldingchute.

As best shown in Fig. 4, the heater plates 48 are mounted upon the upperends of tubu lar arms 272 wlthin Wl11Cl1 are located elec-.'

tric heatingunits 274. The arms 272'are pivotally mounted for tiltingadjustment upon the horizontal pivot rods 256 which extend from thebracket arm 230 to support them. The arms 272 are extended below thepivot rods 256 and apertnred to receive the opposite ends of a rod 276the central portion of which is fixed in the web 228. The

heater plates 48 are pressed yieldingly toward each other by springs 278which surround the rod 276 on opposite sides of said web, said springsbearing against the web and against the downward extensions of the ams272. The inward movement of the heater plates limited by means of nuts.280

threaded upon the ends of the rods 276 and engaging the extensions ofthe arms 272. The nuts 280 are so adjusted that the heater plates48 will:be spread apart somewhat by 'the introduction between them of anarticle the smallest size'supplied to the machine, and consequentlythe-spring 27 6 will be compressed so that the heater plates will beyielding-Ly held against the ends of tie article as described. Thepartially folded portions 6 of the wrapper extensions are folded fiatagainst the opposite sides of the articles as the latter passes betweenthe heater plates by means of folding faces 282 at the ends of saidplates nearer the folding chute. The heat from the heating units 274causes the portions e to adhere to thepreviously folded aortions 0 andd. i

The upper portions f of the tubular side extensionsof the wrapper arenot folded as the article is advanced between the heater plates 48. andsaid portions, which project beyond the ends of the article f asclearly. shown in Fig. 16,, are received in deep channels 284 in theinner faces of the heater plates, these channels being open at both endsof the plates. It is essential for the upper portions f of the wrapperextensions to enter the channels 284, since these channels are tofunction in the subsequent folding of said wrapper portions as willlater appear, and such entrance is insured by a certain'feature intheconstruction and arrangement of the upper plate 222 of the foldingchute, namely, therunyielding mounting of this plate at the dischargeend, of the chute in such a horizontal plane as to guide said wrapperextensions into said channels. It will be seen that the lower plate 220yields downwardly at this end of the chutet o ac commodate articles ofdifferent thicknesses while the upperplate 222 remains stationary andconsequently the, upper wrapper extensions are always located inalinement with the channels- 284 irrespective of variations in thethickness of the articles operated upon. i

The final step in thewrapping operation consists in folding the portionsf of the side extensions of the wrapper against the ends of the article.This operation takes place as the turret 44 starts to rotate after anarticle has been fed into the pocket 100 atthe receiving station 46. Themovementof the turret pulls the extending wrapper porti ns 7 from thechannels 284 and the flatinner faces of the heater plates 48 above saidchair nels wipe the portions 7 against the end faces of the article andseal said portions to. the portions previously folded over said ends ofthe article.

The article has now been completely wrapped and sealed, a-ndthe present.inven tion contemplates the cooling of-the sealed portions of thewrapper before the article is discharged from the turret 44 to obviateany tendency of portlo-ns of the wrapper to become unfolded and therebyinsure that the articles will be delivered from the machine in apermanently wrapped and sealed I condition. With this endin view thecooling device 50 is provided, said device, comprising segmental plateswhich engage the wrapped andsealed end faces of the articles as thelatter pass from the receiving station 46:.to the delivery station 52and operating toextract heat from the sealed wrapper portions whileholding said portions under yielding pressure during the setting orhardening of the wax at the sealed joints.

As shown in Figs. 5 and 6, a single segmetal cooling plate 290 isprovided for engaging the end faces of the articles which aredirectedtoward the front side frame 60. Thiseooling plate290 is rigidly-securedto saidv sideframe and is shaped to completely cover thev end faces ofthe articles throughout substantially the entire course of their travelfrom the receiving, station a6 to the deliyery, station 52. The plate290 is so located as to provide a"slight clearancebemana er and theturret 4A. The opposite end-faces 1 ofthe articles are engaged byasegmental cooling platethat is constructed in twose parated sections292 and 294, said sections ibeinga-rrangedin butting endto-endrelationand carried by a curved arm 296which is-inounted for horizontalswinging, mov,ementabout a pivot stud 298,- the la tter being. carriedby a lug 2300 on the front frame member'GO. Normally the arm 296 is,locked in parallel relation with the 7 between; said turret and'platesections.

stationary cooling plate 290 so as to-locate the plates 292rand 2.94vfor engagement with the articles. ,To thus lock the plate 296 in itsoperativeflposition, a latch pin 302 is mounted;for-vertical-slidingmovement in guidinglugsprojecting fromsaid arm and the lower end-of saidpin is adapted to enter aho le in thelug 300. Ihe latch pin isprovidedwith ahead by; means of which it may be readily withdrawn fromthe hole inthe lug: 300., thereby unlocking the 7 arm 296 so that thecooling plate sections 292 and294i may,,be ,sw11.ng away from thestationary plate 290 to; permit the removal from the turret a l ofany-articles which: may havebecomejammed therein. A handle 30a isprovided to facilitate the manipulation of the sup-porting. arm 296.

Each of thecooling plate sections 292 and 294 a-re supported by aplurality of studs 306 which project at right angles to said platesections and extend through aper tures, inthe supporting arm-296.Springs 308 are coiled around the studs 306 between the -arm 296 and theplate sections 292 and 294 and press said sect-ions toward thestationary plate 290. The-extent of movement of the plate sections292-and 294 under the influence of the springs 308 is limited bysuit-able cotter pins 310 in the studs which engage the outer side'ofthe arm 296 and are located so as to "normally maintain saidfplfitHSECtiOllS-QQQ and 29a parallel to the stationary plate 290 andspaced from the turret 4 to provide a slight clearance space To increasethe capacity of the plate sections 292 and 29 to extract heat from thewraplessen pers, each of said sections is provided with a series ofheat-radiating fins or vanes 311 which facilitate the radiation of heatfrom the plate sections. Both plate sections 292 and 29% flare outwardlyat the ends first engaged by the articles, one of said flaring portionsbeing indicated at 312 inrllig. 6,v In this way the articles are enabledto easily force their way behind said plate sections. The abovedescribed yielding mounting of the cooling plate sections 292 and294obviously enables them to adjust themselvesto the articles ofdifferent widths in the turret 4st. The yielding cooling member is madeintwo sections, as described, and each section is made of such, lengththat no more than two articles may engage either of said sections at thesame time. This construction eliminates the possibility of one or morearticles failing to be engaged the cooling plate by reason of, thepresence both before and behind said articles of other articles ofsomewhat greater width. In the present construction, the apertures inthe arm 296, through which the studs 306 extend are large enough topermit a slight tilting of said studs and if either plate section 292 01294 simultaneously engages two articles of different sizes the platesections will/tilt slightly so as to engage each article and press eacharticle with equal force.

It will be seen by reference to Fig; 6 that the turret 44 is slightlynarrower than the articles operated uponso that the latter will projectbeyond opposite sides of the turret to insure their engagement with thecooling plate. The amount of clearance between the turret 44 and thestationary cooling plate is very small and when an article of minimumsize, such as the article shown stantially the same amount of clearancewill be present between the turretiand the yielding coolingplatesections. It is obvious, however, that when a larger article isbeing acted upon the yielding plate section engaged thereby willbeforced farther away from the side of the turret so that the clearance sace between the turret and the yielding p ate section will be increased.Such a condition is illustrated in 6 wherein a relatively large article316 is in engagement with the plate section 294- and the clearance spacebetween said section and the turret is greater than the clearance spacebetween the other plate section 292 and the turret. If there is morethan minimum amount of clearance space between the turret and theyielding cooling plate sections there is a possibility that the dragexerted by said plate sections upon the folded over wrapper extensionsat the ends of the articles will draw into the clearance space behindthe article, the portion of the wrapper which is folded about the rearcorners of the side faces engaged by said plate sections and as a resultthere will be an undesirable fullness in the wrappers where the same hasbeen pulled away from the corners of the articles. To prevent theoccurrence of the above described undesirable condition, the walls ofthe pockets 100 are provided, along their radial edges, with prongs 320(Fig. 5) which extend in the planes of said side walls and are arrangedto register with grooves in the yielding plate sections, said groovesbeing concentric with the axis of rotation of the turret 4A. The prongs320 are of such length as to bridge across the clearance space betweenthe turret and the yielding cooling plate sections irrespective ofvariations in the size of the articles being wrapped. To permit theprongs to pass the heater plates 48, the latter are provided withsuitable slots 324 (Fig. 2) to receive said prongs.

When the articles have been advanced beyond the cooling device 50 by therotation of the turret 4A, the sealed portions of the wrappers havehardened or set so that there s nodanger that they will accidentallyopen up during subsequent handling and shipping of the articles.Immediately after pausing beyond the cooling device 50 the articles arebrought to the delivery station 52 where they are discharged from theturret 44 by the action of the push. bar 54. As shown, a platform 326 isprovided for receiving the articles as they are ejected from the turret44 and suitable provision may be made removing the articles from theplatform if desired.

, The invention has been disclosed herein, for illustrative purposes, inwhat is now considered its preferred embodiment, but the scope of theinvention is defined by the appended claims rather than by the foregoingdescription.

What I claim is:

1. In a wrapping machine, means for applying a wrapper to an article ofrectangular prismatic form to cover four sides of the article and toprovide a tubular Wrapper extension projecting beyond the two ends ofthe article, said means including a folding chute for yieldinglypressing the wrapper' against .two of said sides after it has beenfolded thereover, means for engaging the portions of the wrapperextending beyond two opposite. edges of the uncovered ends and foldingsaid extensions against said ends leaving two unfolded wrapperextensions still projecting beyond the article, means rigid with thefolding chute for starting the folding of one of the remaining unfoldedextensions at each end of the article, independent means'for completingsaid folding operation and yieldingly pressing said extensions againstthe article, and

means for folding the remaining wrapper,

extensions to complete the. wrapping of the article.

2. In a wrapping machine, a folding chute having top, bottom and sidemembers mounted for outward yielding movement to accommodate articles ofvarying sizes, means for applying wrappers to variable sized articles ofrectangular prismatic form to cover four facesof each article and toprovide tubular extensions projecting beyond the other two faces thereofand for finally positioning said article opposite the receiving end ofthe folding chute with said tubular extensions projecting at rightangles to the length of the chute, a feed arm for engaging the rear faceof the article and advancing it into the chute, spaced mem-' therein,and means for receiving the articlesas they leave the chute andcompleting the wrapping operation.

3. In a wrapping machine, a folding chute comprising four side membersar ranged to operate upon four sides of an article of rectangularprismatic form, said sides beingcovered by a wrapper and said wrapperhaving tubular extensionsprojecting beyond the two uncovered ends of thearticle, each of the four side members of the chute having supportingmeans with provision for independent outward yielding movement of saidside members to adapt the chute to accommodate articles of differentsizes, the means for supporting one of said side members beingconstructed and arranged to enable the latter to be removed at will fromoperative relation with the other members of the chute to permitconvenient access to the interior thereof.

4. In a Wrapping machine, the combination of a carrier rotatable throughreceiving and delivery stations and having a plurality of pocketsforholding wrappedarticles with their opposite ends projecting beyondthe sides of the carrier, means for introducing partially wrappedarticles into said pockets as the latter successively reachthe receivinstation heated members ad- 7 I acent opposite sides of the carrier forengaging the projecting ends of the articles and having slotted foldingportions to re ceive extensions of the wrapper andfold the same againstthe ends of the articleas' the'carrier rotates and for heat sealing saidfolded Wrapper extensions] 5. In a wrapping machine, the combination ofa carrier rotatable through receiving and delivery stationsand having aplurali'ty of pockets for holding wrapped articles with their oppositeends projectingibeyond the sides of the carrier, means "for introducingpartially wrapped articles into said pockets as the latter successivelyreach the receiving station, a folding chute adapted to. receiveincompletely wrapped articles having wrapper extensions pro ectingbeyond the trout, top and bottom tacos of the articles at opposite sidesof the latter and to partially fold the wrapper extensions which projectbeyond said bottom faces against the sides of the articles, means foradvancing the articles through the folding chute and introducing theminto the pockets of the carrier as the latter successively reach thereceiving station, heat-sealing devices adjacent opposite sides of thecarrier for engaging the projectingends of the articles said devicesbeing constructed and arranged to complete the folding of said lowerwrapper extensions as the articles are being introduced therein andsubsequently to heat-seal said extensions, and said devices beingprovided with channels for receiving the projecting upper wrapperextensions and being operative to fold the latter against said lowerextensions as the carrier rotates and to subsequently heat seal saidextensions, and means for ejecting the wrapped and sealed articles fromthe carrier.

6. In a wrapping machine, a turret rotatable through article receivingand delivery stations and provided with a pocket adapted to receive awrapped article having portions of the wrapper overlapping at oppositeends thereof and to hold the article with said ends projecting beyond 7the sides of the turret, means for heating said projecting ends of thearticle to seal the overlapping portions of the wrapper, a cooling platerigidly supported at one side of the turret for engaging one of the'projecting ends ot the article as it leaves said heating means, and asecond cooling plate at the opposite side of the turret for engaging theother projecting ends of the article it leaves the receiving station,said second plate being adapted to yield to accommodate itself toarticles of different sizes.

' i. In a Wrapping machine, a turret rotatable through article receivingand delivery stations and provided with a pocket acapted to receive awrapped article having portions of the wrapperoverlapping at oppositeends thereof and to hold the article with said ends projecting beyondthe sides of the turret, means for introducing the article into saidpocket, means for heating said projecting ends of the article to sealthe overlapping portions of the Wrapper, a cool- .ing plate rigidlysupported at one side of the turret for engaging one of theprojectingends of the article as it leaves said heating means, and inwardlyspring-pressed cooling plate atthe opposite side of 3 the turret forengaging the other projecting end otthe article as it leaves thereceiving st: ion and cooperating with the other coolplate to hold thearticle under pressure during the cooling thereof, said latter platebeing movable to a position out of cooperative relation with the rigidcooling plate.

8. In a wrapping machine, a turret rotatahle through article receivingand" delivery stations and provided with'a pocket adapted to receive awrapped article having portions of the wrapper overlapping at oppositeends thereof and to hold the article with said ends projecting beyondthe sides of. the turret, means for introducing the a ticle into saidpocket, means for heating said projecting ends of the article to sealthe overlapping portions of the wrapper, a

cooling plate rigidly supported at one side of the turret for engagingone of the projecting ends of the. article as it leaves said heatingmeans, a second coolingplate atthe opposite side of the turret forengaging the other projecting end of the article as it leaves thereceiving station, saidsecond plate being adapted to yield toaccommodate it self to articles of different sizes and having a groovein its "inner face concentric with the axis of rotation of the turret,and a projection upon the rear wall of said pocket adapted to extendinto said groove to bridge across the clearance space between the turretand the yielding cooling plate. i

9. In a wrapping .machine, a turret rotatable through article receivingand de-- livery stations and provided with a plurality of spacedperipheral pockets adapted to receive wrapped articles having portionsof the wrapper overlapping at opposite ends thereof and to hold thearticles with said ends projecting beyond the sides of the turret,

means for introducing the articles into said pockets as the'lattersuccessively reach the receiving station, means at the receiving stationfor applying heat to saidprojeeting ends of the article to seal theoverlapping portions of the wrapper, a cooling plate rigidly supportedat one sideiofrthe turret for engaging one "of: the-projecting ends of Vgular movement to. enablethem to simule taneously engage two articles ofdifierent ceive wrapped articles having portions of,

sizes. a

10. Ina wrapping machine, a turret ro tatable through article receivingand delivery stations and provided with a plurality of spaced peripheralpockets adapted to rethe wrapper overlapping at opposite ends thereofand to hold the articles with said ends projecting beyond the sides ofthe turret. means for introducing the articles into said pockets as thelatter successively reach the receiving station, means at the receivingstat-ion for applying heat to said projecting ends of the article toseal the overlapping portions of the wrapper, a cooling plate rigidlysupported at one side of the turret for engaging one of the projectingends of the articles as they are advanced toward the delivery station, amovable support at the opposite side of said turret, a plurality ofsegmental cooling plates arranged end to end and yieldingly mounted uponsaid sup port, and means for latching said support in position to enablesaid segmental plates to yieldingly engage the other projecting ends ofthe articles to hold said overlapping Wrapper portions in place duringthe cooling thereof and for releasing said support to enable thesegmental plates to be moved out of operative positions.

11. In a wrapping machine, a rotatable turret provided with a pockethaving a rigid wall and a yielding wall for engaging upper and lowersidesof a partially wrapped rec-.

tangular article to hold same in said pocket,

means for rotating the turret to transfer the article from a receivingto a delivery station, a folding chute adjacent the delivery station forreceiving said article, the chute having upper and lower disposedplatesone of which is arranged to engage the side of the articlepreviously engaged by the yieldingwall of said pocket and being mountedwith provision for yielding movement at the end adjacent the entrance tosaid chute and pivotally mounted upon a stationary part of the machineat its opposite end, while the other of said plates is arranged toengage the end of the article previously engaged by the rigid wall ofsaid pocket and being pivotally mounted upon a stationary part of themachine at the end adjacent the entrance to said chute and mounted atits opposite end with provision for outward yielding movement.

12. In a. wrapping machine, means for completing the wrapping of arectangular prismatic article four faces of wh1ch are covered by awrapper having substantially tubular extensions projecting beyond theends of the article said means including a plate for applying yieldingpressure to one of the covered faces of the article, meansfor advancingthe article across said plate, rigid means on said plate for engagingthe portions of said tubular wrapper extensions projecting beyond theface engaged by said plate and folding said portions part way toward theuncovered ends of the article,

inwardly pressed members for engaging said 1 partially folded. wrapperportions and completing the folding thereof against said untaining thefour covered faces under yielding pressure during subsequent operationsfor covering the ends of the article, means for engaging the portions ofsaid tubular extensions at the rear side thereof and means for engagingportions of said tubular extensions at the front side thereof, both ofsaid means acting to'fold its respectiveportions of the wrapperagainst'the uncovered ends of the article leavingtwo unfolded wrapperextensions projecting beyond said ends, means for engaging one of saidunfolded extensions at each end of the article and folding saidextensions toward the article but not into contact therewith,'means forengaging said partially folded extensions to completethe folding thereofby pressing them yieldingly against the ends of the article, and meansfor folding the remaining wrapper extensions to complete the "wrappingof the article: Y v

14-. In a wrappingmachine having means for applying to a rectangularprismatic article a wrapper covering thetop, bottom,

sequently operating upon the article tocomplete the wrapping thereofincluding a folding chute having inwardly pressed opposed walls foryieldingly engaging the top and bottom covered faces of the article,means for engaging the portions of the tubular extensions projectingbeyond therear face at the ends of the article and folding them againstsaid ends and for feeding the article through the chute, means on thechute for engaging the portions of the tubular extensions projectingbeyond the front covered face of the article and folding them againstthe ends of the article, rigid means on one of said inwardly pressedwalls of the chute for engaging the portions of the wrapper projectingbeyond the face of the article engaged by said walland folding saidportions partway toward the ends of the article as the latter isadvanced through tions of the Wrapper to complete the'wrapping ofthearticle.

l5. In 'a Wrapping machine for rectangnlar prismatic; articles, aWrapping wheel having pocliets rotatable through receiving anddeliverystations, means for 'introduc-' ing ;an -article "and Wrapper into apocket, at its receiving station to partially fold the Wrapper aloout-thesideszof the-article, a toldinglchute ;at the delivery: station ofsaid pockets "and ;Ineans; 'to' discharge-the partially Wrapped: articleinto said gchute to; [complete the folding oti "th'ewwr'appei" about thesidesr of {the-z article "and? leaving; extensions: beyond theendssbfthearticle, saidrwfoldin'g. chll lle cornpnisirig devices fortucking one side of: said extensions: of *said wrapper,- and: slottedportions: to. initiate end folds of said?extensions; a TfinishingWl1eel='h avi11g; pockets rotatable through.'=re'- ceivinganddischarging-stations and adapt ed to receive" the partially.Wrappedartide troinsaid chutesheat sealing and "folding device s"adjacent" the receiving station of said finishing; :WhEGl pockets and?arranger-l: to complete the: end: told initiatedin said chutefsaid'he'at sealing'and folding devices also "comprising" 5 slottedportions'j to inakefinal overlapping and folds? of 'said' Wrapper whenthepockeflof the finishing Wheel carries the article: "froni I thereceii' ing sta tionf 16. In a wrapping inachine' for rectangularprismatic articles, awrapping wheel having pockets rotatable throughreceiving and delivery stationsfmeans for introduc-" ing anarticle-andwrapper intoa pocket at itsreceiving stationjto' partiallyfold the Wrapper about the sidesjof- 'th'e" article,{ a foldingi chut'eat the delivery station of 'saidpdcket's" and means" to discharge-thepartially* ivr'apped article "into" said chutef to eonrple'te thefolding "thc wrapper-- about the sicle'swf the article and" leavingextensions" beyond the "ends of the" article,

5 said folding chute comprising 'devices'ior tucking-one side of saidextensions of said wrapper; and slotted'por't'ions' to initiate" en'dfoldsof"said extensions, a finishing' Wheel having pockets rotatablethroughwre ceiving and discharging stations and adaptP-- ed to receivethe partially-wrapped article from said chute, heat sealing'andfoldingdevicesadjacent the receiving station of said finishing Wheelpockets and arranged.

to complete the end fold initiated in said chute, said heat sealingand-folding devices also comprising slotted portions to: make finaloverlapping end fol'dsot saidwrap= per when the pocket of the finishingWheel carries thearticle, from the receiving Stale tion, cooling: platesat-each-Fside-of said finishing: wheel and} arranged to effect yielding-pressii-re"upon theik'wrapped ends of; said articles: duringr-thepass'agewof' the latteritojthe:del'ivery stationi} "175 In aWrapping?maclrineioi rectanguilai'; prismatic" articles,-: a -Wrappingi-iwh eel= having pockets rotatable throu'ghrreceivihg and deliverystations, inearis; for introduc sions "of the "Wrapper beyondtthe" end soil the. wrapper, said- "ejector having-tricking eleinents *to tuckoneside of? 'sa'id extensions, said folding (-hute"compr1s1ng devices fortucking the fother' side of said fe xtensions of" said ivrapper,andslotted "portions to? initiate enddolds of. saidextensions; afinish-" ingiavhe'el having pockets rotatable through? receiving qantldischarging stations and: adaptedto receive the partially wvrappedfarticle 'froni said chute, heat-sealing and Wheel "carries the articlefrom" the receiving station.

In't stimony whereof I have alliied" signature".

ELMER' LOVELL SMITH.

